///////////////////////////////////////////////////////////////////////////
bool LineOfSightCanSee(FogShape shape, Vector2 offset, float fogradius)
{
if (shape.LineOfSight == null)
{
return(true);
}
float idx = FogTools.ClockwiseAngle(Vector2.up, offset) * shape.LineOfSight.Length / 360.0f;
if (idx < 0)
{
idx += shape.LineOfSight.Length;
}
// sampling
float value;
if (_Map.FilterMode == FilterMode.Point)
{
value = shape.LineOfSight[Mathf.RoundToInt(idx) % shape.LineOfSight.Length];
}
else
{
int idxlow = Mathf.FloorToInt(idx);
int idxhigh = (idxlow + 1) % shape.LineOfSight.Length;
value = Mathf.LerpUnclamped(shape.LineOfSight[idxlow], shape.LineOfSight[idxhigh], idx % 1);
}
float dist = value * fogradius;
return(offset.sqrMagnitude < dist * dist);
}
// FUNCTIONS
///////////////////////////////////////////////////////////////////////////
public DrawInfo(FogMap map, FogShape shape, float xradius, float yradius)
{
// convert size to fog space
fogForward = shape.Forward;
forwardAngle = FogTools.ClockwiseAngle(Vector2.up, fogForward) * Mathf.Deg2Rad;
float sin = Mathf.Sin(-forwardAngle);
float cos = Mathf.Cos(-forwardAngle);
Vector2 relativeoffset = new Vector2(shape.Offset.x * cos - shape.Offset.y * sin, shape.Offset.x * sin + shape.Offset.y * cos);
fogCenterPos = FogConversion.WorldToFog(FogConversion.WorldToFogPlane(shape.EyePosition, map.Plane) + relativeoffset, map.Offset, map.Resolution, map.Size);
fogEyePos = new Vector2_1(FogConversion.WorldToFog(shape.EyePosition, map.Plane, map.Offset, map.Resolution, map.Size));
// find ranges
if (shape.VisibleCells == null)
{
xMin = Mathf.Max(0, Mathf.RoundToInt(fogCenterPos.x - xradius));
xMax = Mathf.Min(map.Resolution.x - 1, Mathf.RoundToInt(fogCenterPos.x + xradius));
yMin = Mathf.Max(0, Mathf.RoundToInt(fogCenterPos.y - yradius));
yMax = Mathf.Min(map.Resolution.y - 1, Mathf.RoundToInt(fogCenterPos.y + yradius));
}
else
{
fogCenterPos = FogConversion.SnapToNearestFogPixel(fogCenterPos);
fogEyePos = new Vector2_1(FogConversion.SnapToNearestFogPixel(FogConversion.WorldToFog(shape.EyePosition, map.Offset, map.Resolution, map.Size)));
Vector2_1 pos = new Vector2_1(Mathf.RoundToInt(fogCenterPos.x), Mathf.RoundToInt(fogCenterPos.y));
Vector2_1 rad = new Vector2_1(Mathf.RoundToInt(xradius), Mathf.RoundToInt(yradius));
xMin = Mathf.Max(0, Mathf.RoundToInt(pos.x - rad.x));
xMax = Mathf.Min(map.Resolution.x - 1, Mathf.RoundToInt(pos.x + rad.x));
yMin = Mathf.Max(0, Mathf.RoundToInt(pos.y - rad.y));
yMax = Mathf.Min(map.Resolution.y - 1, Mathf.RoundToInt(pos.y + rad.y));
}
}
////////////////////////////////////////////////////////////////////////////////
void ProcessUnits(bool checkstopwatch)
{
// remove any invalid units
FogUnit.RegisteredUnits.RemoveAll(u => u == null);
double millisecondfrequency = 1000.0 / System.Diagnostics.Stopwatch.Frequency;
for (; _CurrentUnitProcessing < FogUnit.RegisteredUnits.Count; ++_CurrentUnitProcessing)
{
if (!FogUnit.RegisteredUnits[_CurrentUnitProcessing].isActiveAndEnabled)
{
continue;
}
FogShape shape = FogUnit.RegisteredUnits[_CurrentUnitProcessing].GetShape(this, Plane);
if (MultiThreaded && UpdateAutomatically)
{
_ThreadPool.Run(() => _Drawer.Draw(shape));
}
else
{
_Drawer.Draw(shape);
}
// do the timer check here so that at least one unit will be processed!
if (checkstopwatch && _StopWatch.ElapsedTicks * millisecondfrequency >= MaxMillisecondsPerFrame)
{
++_CurrentUnitProcessing;
break;
}
}
}
public void Draw(FogShape shape)
{
if (shape is FogCircle)
{
DrawCircle(shape as FogCircle);
}
else if (shape is FogShapeTexture)
{
DrawTexture(shape as FogShapeTexture);
}
}
///////////////////////////////////////////////////////////////////////////
/// <summary>
/// Returns fog of war line of sight shape.
/// </summary>
/// <param name="fow"></param>
/// <param name="plane"></param>
/// <returns></returns>
public FogShape GetShape(FogManager fow, FogOfWarPlane plane)
{
FogShape shape = CreateShape(fow);
if (shape == null)
{
return(null);
}
shape.LineOfSight = CalculateLineOfSight(shape.EyePosition, plane);
shape.VisibleCells = null;
return(shape);
}
///////////////////////////////////////////////////////////////////////////
void FillShape(FogManager fow, FogShape shape)
{
if (AntiFlicker)
{
// snap to nearest fog pixel
shape.EyePosition = FogConversion.SnapWorldPositionToNearestFogPixel(fow, FogConversion.WorldToFogPlane(_Transform.position, fow.Plane), fow.MapOffset, fow.MapResolution, fow.MapSize);
shape.EyePosition = FogConversion.FogPlaneToWorld(shape.EyePosition.x, shape.EyePosition.y, _Transform.position.y, fow.Plane);
}
else
{
shape.EyePosition = _Transform.position;
}
shape.Forward = FogConversion.TransformFogPlaneForward(_Transform, fow.Plane);
shape.Offset = Offset;
shape.Radius = Radius;
}
///////////////////////////////////////////////////////////////////////////
bool LineOfSightCanSeeCell(FogShape shape, Vector2_1 offset)
{
if (shape.VisibleCells == null)
{
return(true);
}
int radius = Mathf.RoundToInt(shape.Radius);
int width = radius + radius + 1;
offset.x += radius;
if (offset.x < 0 || offset.x >= width)
{
return(true);
}
offset.y += radius;
if (offset.y < 0 || offset.y >= width)
{
return(true);
}
return(shape.VisibleCells[offset.y * width + offset.x]);
}
